7. Geographic Information

The geographical distribution of long-lived assets to geographical areas consisted of the following at:



		March 31,		December 31,
		2018		2017
United States	$	5,834	$	5,407
Singapore		1,205		1,254
All other		508		514
Consolidated	$	7,547	$	7,175

Long-lived assets consist of property and equipment. Excluded from long-lived assets are investments in partnerships, patents, license agreements, intangible assets and goodwill. The Company capitalizes long-lived assets pertaining to the production of specialized parts. These assets are periodically reviewed to assure the net realizable value from the estimated future production based on forecasted cash flows exceeds the carrying value of the assets.

The geographical distribution of net sales to geographical areas for the three months ended March 31, 2018 and 2017 were as follows:



		Three Months Ended
Net Sales to Geographical Areas		March 31, 2018		March 31, 2017 (as adjusted)

United States	$	20,459	$	16,650
Europe		2,278		2,478
Asia		2,468		1,910
All other		158		177
Consolidated	$	25,363	$	21,215

Geographic net sales are allocated based on the location of the customer.

For the three months ended March 31, 2018, one customer accounted for 54% of the Company’s consolidated net sales. For the three months ended March 31, 2017, one customer accounted for 45% of the Company’s consolidated net sales.

At March 31, 2018, two customers combined accounted for 39% of the Company’s consolidated accounts receivable. At December 31, 2017, two customers combined accounted for 33% of the Company’s consolidated accounts receivable.

At March 31, 2018, one customer combined accounted for 83% of the Company’s consolidated contract assets. At December 31, 2017, one customer combined accounted for 62% of the Company’s consolidated contract assets.